sqlhadr-review SKILL.md skillB

sqlhadr-review from vanterx/mssql-performance-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add vanterx/mssql-performance-skills/sqlhadr-review@git:20261006.2c73ad2

Pins git:20261006.2c73ad2 in mdr.lock. Pin the fingerprint instead.

Audit grade
B, 16 of 17 checks passed
Kind
SKILL.md skill
Repository
vanterx/mssql-performance-skills
Path
skills/sqlhadr-review/SKILL.md
Versions recorded
6
Latest version
git:20261006.2c73ad2, committed Oct 6, 2026
First version recorded
Jun 7, 2026
Size
36,390 bytes
Repository stars
12
License
MIT

Analyzes sys.dm_hadr_* DMV output to assess Always On Availability Group replica health, synchronization state, secondary lag, redo and log send queue sizes, and configuration gaps. Use this skill when an availability group is behaving unexpectedly, a secondary replica is lagging, data loss is a concern, a database appears stuck initializing after a failover, or you need a SQL-side snapshot of AG health to complement CLUSTER.LOG and ERRORLOG diagnostics. Applies 27 checks…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# SQL Server Always On AG Health Review Skill

## Purpose

Analyze output from the `sys.dm_hadr_*` DMV family to assess the health of one or more
Always On Availability Groups. Applies 27 checks (H1–H28, with H21 retired and merged into
`sqlag-review` F15 — see Category 4) across six categories:

- **H1–H6** — Replica connectivity and role: detect disconnected replicas, resolving state,
  unhealthy synchronization health, replicas not synchronizing, last-connect errors, and
  failover mode mismatches
- **H7–H11** — Data loss and recovery time: flag estimated data loss, excessive recovery time,
  secondary lag, redo queue buildup, and log send queue buildup
- **H12–H16** — Throughput and performance: detect stalled redo rate, stalled log send rate,
  rate mismatch causing queue accumulation, multiple databases lagging on the same replica,
  and commit latency signals on sync-commit replicas
- **H17–H22** — Configuration: async replica in unexpected position, no automatic failover
  replica, single-replica AG, missing listener, and automatic seeding in progress (H21 is
  retired — read-only routing absence is covered by `sqlag-review` F15)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add vanterx/mssql-performance-skills/sqlhadr-review@sha256:19bbb1f902699383

The line at the top of this page pins the label git:20261006.2c73ad2, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_onmsjrxmna7jvtac.svg)](https://markdownregistry.com/a/art_onmsjrxmna7jvtac)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 6 versions of this file, between Jun 7, 2026 and Oct 6, 2026, about one every 24 days. Its first recorded version is graded A and its latest B.

versioncommittedcommitsizeaudit
git:20261006.2c73ad2 latest2026-10-06 2c73ad2 36,390 BB view · diff
git:20260622.55f8c852026-06-22 55f8c85 34,839 BA view · diff
git:20260621.d1ce43d2026-06-21 d1ce43d 33,926 BA view · diff
git:20260618.dac000f2026-06-18 dac000f 30,870 BA view · diff
git:20260610.ae6f1c12026-06-10 ae6f1c1 30,873 BA view · diff
git:20260607.6ff4f7a2026-06-07 6ff4f7a 30,621 BA view

Audit of the latest version

B  16 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • fail: No prompt-injection phrasing (matched: ignore the previous instructions)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (36390 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.

Source

GitHub

vanterx/mssql-performance-skills · 12 stars · license MIT · pushed 2026-10-29 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_onmsjrxmna7jvtac
GET https://markdownregistry.com/api/v1/resolve?ref=vanterx/mssql-performance-skills/sqlhadr-review
GET https://markdownregistry.com/api/v1/blob/19bbb1f902699383ff143885329824d5003c8b3d9a473c4e5ac1b0cab1ec3a8b

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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